16 PROCEEDINGS OP THE CALIFORNIA 



Origin of first dorsal to origin of second dorsal 3.35 



Length of third dorsal spine 2.25 



Length of base of first dorsal 2.75 



Length of base of first anal.. 1.5 



Eye to tip of snont 1-3 



Circumference at origin of spinous dorsal 7.5 



Width of inter-orbital space 0.63 



The single specimen was taken by Mr. W. J. Fisher, oflf Asuncion Island, 

 Lower California, at a depth of eight fathoms. 



The proportions and coloration of this fish agree very nearly with those of 

 Centropomns undecimalis, Cuv. and Val. ; and I strongly suspect its identity 

 with that species, which is, however, not known to me from specimens or 

 figures. 



('. undecimalis is a native of the Atlantic shores of tropical America; but Dr. 

 Gunther queries its occurrence at Lima. If it should prove, on further ac- 

 quaintance, to be a distinct species, I proi^ose to name it Cerdropomns viridis. 



